Labosphere generates Cubari repositories for One Piece releases by VIZ Media (chapters 1-998) and TCB Scans (chapters 999+).
It retrieves chapter metadata in reverse sequential order, beginning with the latest chapter and ending with Chapter 1. It then uses this metadata to compose a JSON file which can be provided to Cubari as-is.
The technically inclined are welcome to run Labosphere themselves:
docker run -rm -v ${PWD}/labosphere:/labosphere ghcr.io/celsiusnarhwal/labosphere:latest
You can also install Labosphere persistently with uv:
uv tool install git+https://github.com/celsiusnarhwal/punk-records
labosphere start
Be advised that Labosphere offers no changelogs or version guarantees.